== sanity test 413k: QoS mkdir exclude prefixes ========== 23:18:50 (1775877530)
lmv.lustre-clilmv-ffff8a7147f95800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a7147f95800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a7147f95800.qos_exclude_prefixes=_temporary